'Waec' is thought to have been an Anglo-Saxon festival, which then became a religious celebration after the country's conversion to Christianity. A parish would hold a festival on the day of their church’s patron saint, and the congregation would attend a late-night vigil of prayer - a ‘wake.’ As I'm sure you can imagine, any religious significance was soon forgotten and it grew into a lively occasion, with events such as bull baiting and bare-knuckle fighting.